948539789 has 4 divisors (see below), whose sum is σ = 948604800. Its totient is φ = 948474780.

The previous prime is 948539777. The next prime is 948539819. The reversal of 948539789 is 987935849.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 948539789 - 2⁸ = 948539533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (948539719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662 + ... + 43560.

It is an arithmetic number, because the mean of its divisors is an integer number (237151200).

Almost surely, 2^948539789 is an apocalyptic number.

It is an amenable number.

948539789 is a deficient number, since it is larger than the sum of its proper divisors (65011).

948539789 is a wasteful number, since it uses less digits than its factorization.

948539789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65010.

The product of its digits is 19595520, while the sum is 62.

The square root of 948539789 is about 30798.3731550873. The cubic root of 948539789 is about 982.5436451334.

The spelling of 948539789 in words is "nine hundred forty-eight million, five hundred thirty-nine thousand, seven hundred eighty-nine".